1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) Wipro Technologies Ltd, 2003.  All Rights Reserved.
4 *
5 * Author:	Aniruddha Marathe <aniruddha.marathe@wipro.com>
6 *
7 * Ported to new library:
8 * 07/2019	Christian Amann <camann@suse.com>
9 */
10/*
11 *
12 * Basic test for timer_create(2):
13 *
14 *	Creates a timer for each available clock using the
15 *	following notification types:
16 *	1) SIGEV_NONE
17 *	2) SIGEV_SIGNAL
18 *	3) SIGEV_THREAD
19 *	4) SIGEV_THREAD_ID
20 *	5) NULL
21 *
22 * This is also regression test for commit:
23 * f18ddc13af98 ("alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP")
24 */
25
26#include <signal.h>
27#include <time.h>
28#include "tst_test.h"
29#include "tst_safe_macros.h"
30#include "lapi/common_timers.h"
31
32static struct notif_type {
33	int		sigev_signo;
34	int		sigev_notify;
35	char		*message;
36} types[] = {
37	{SIGALRM, SIGEV_NONE, "SIGEV_NONE"},
38	{SIGALRM, SIGEV_SIGNAL, "SIGEV_SIGNAL"},
39	{SIGALRM, SIGEV_THREAD, "SIGEV_THREAD"},
40	{SIGALRM, SIGEV_THREAD_ID, "SIGEV_THREAD_ID"},
41	{0, 0, "NULL"},
42};
43
44static void run(unsigned int n)
45{
46	unsigned int i;
47	struct sigevent evp;
48	struct notif_type *nt = &types[n];
49	kernel_timer_t created_timer_id;
50
51	tst_res(TINFO, "Testing notification type: %s", nt->message);
52
53	memset(&evp, 0, sizeof(evp));
54
55	for (i = 0; i < CLOCKS_DEFINED; ++i) {
56		clock_t clock = clock_list[i];
57
58		evp.sigev_value  = (union sigval) 0;
59		evp.sigev_signo  = nt->sigev_signo;
60		evp.sigev_notify = nt->sigev_notify;
61
62		if (clock == CLOCK_MONOTONIC_RAW)
63			continue;
64
65		if (nt->sigev_notify == SIGEV_THREAD_ID)
66			evp._sigev_un._tid = getpid();
67
68		TEST(tst_syscall(__NR_timer_create, clock,
69				nt->sigev_notify ? &evp : NULL,
70				&created_timer_id));
71
72		if (TST_RET != 0) {
73			if (possibly_unsupported(clock) &&
74			    (TST_ERR == EINVAL || TST_ERR == ENOTSUP)) {
75				tst_res(TCONF | TTERRNO, "%s unsupported",
76					get_clock_str(clock));
77			} else {
78				tst_res(TFAIL | TTERRNO,
79					"Failed to create timer for %s",
80					get_clock_str(clock));
81			}
82			continue;
83		}
84
85		tst_res(TPASS, "Timer successfully created for %s",
86					get_clock_str(clock));
87
88		TEST(tst_syscall(__NR_timer_delete, created_timer_id));
89		if (TST_RET != 0) {
90			tst_res(TFAIL | TTERRNO, "Failed to delete timer %s",
91				get_clock_str(clock));
92		}
93	}
94}
95
96static struct tst_test test = {
97	.test = run,
98	.tcnt = ARRAY_SIZE(types),
99	.needs_root = 1,
100	.tags = (const struct tst_tag[]) {
101		{"linux-git", "f18ddc13af98"},
102		{}
103	}
104};
105